Explosion-engine cylinder



Jan. 31, 1928.

E. MAGGIORA EXPLOSION ENGINE CYLINDER Filed June 1. 1926 iii F;

Patented Jan. 31, 1928.

UNITED STATES ERNESTO MAGGIORA, F TURIN, ITALY.

EXPLOSION-ENGINE CYLINDER.

Application filed June 1, 1926, Serial No. 113,017, and in Italy June 15, 1925.

The present invention relates to combustion engines and more particularly to cylinders of engines of the kind in which each cylinder is provided with an opening leading from outside to the combustion space for the purpose of removingsoot and scales therefrom and has a removable plug intended to close said opening.

The present invention has for its object the provision for water circulation through said plug closing the cylinder'cleaning opening and according to the present invention said plug is made hollow and the space within it is put in communication with the water jacket ofthe cylinder for the purpose of cooling it; according to a further feature of this invention said water jacket has ports in its outer portion and the said plug has a flange abutting against said water jacket portion and provided with ports registering wit-h the water jacket ports.

A further feature of this invention is the provision of means in the water jacket for assisting the water circulation through said plug.

On the annexed drawing is shown by way of example an embodiment of the present invention and Figure 1 is a side view of a block of cylinders of an explosion engine with a portion in sectional view and with the feature of the present invention embodied therein;

Figure 2 is a transverse section on line Ill-II of Fig. 1;

Figure 3 is a sectional View of a separate plug on enlarged scale;

Figure 4 is a view of the plug as viewed in the direction of the arrow IV in Fig. 3;

Figure 5 is a sectional view of said plug on the line V-V of Fig. 3.

As shown in Figures 1 and 2, on one side of the cylinder block 1, in the wall of each cylinder in register with the explosion chamber of the same (shown by 14:) is provided a port 2 having any desired shape and lead iag to engine cylii'ider explosion chamber, said port being encircled by walls separatiug it from the water jacket 5.

Said port is closed by means of a plug referred to in its whole by 3 and hereinafter particularly described, which is fastened in position by means of screws e passing thrrm 'h a portion of said plug and enaw threaded holes 7 of the water P s, ir l fiziprises a liolhiw body adapted to project through the water jacket space and to flush with the internal wall of the cylinder chamber 14, and an enlarged hollow section which provides a head 6 extending outwardly with respect to plug body 3; the hollow of said head is in communication with the hollow of body 3.

The wall of head 6 has enlarged portions passed through by holes 8 intended to receive bolts l fastening the plug in position on the cylinder, and the front portion of the head provides a wall 16 adapted to abut on the cooperating wall 17 of the water jacket wall. 7

In registering portions of said water jacket and plug head, walls are provided ports 10-9 putting the hollow of said plug in communication with thespace inside the water jacket; moreparticularly said ports 910 are provided along the entire periphcry of head or flange 6 of the plug and co operating seat of the water jacket wall, a portion of them being thus located under the plug body and another being above said plug body.

When the plug is in position on the cyl inder as shown by FigureQ, the cooling water flowing through water jacket 5 enters the hollow of head 6 through the lower ports 10 and 9 and flows through the plug hollhw, it being then discharged through top ports 9 and 10 into the top portion of the water jacket 5.

In order to improve the water circulation through the plug, in the top space of the water jacket above said seat 2 and plug 3 is provided an upwardly projecting bafile or partition 11 connected with transverse partitions 12 extending from the adjacent wall t of the water jacket to said partition 11, said partitions 11-12 providing inside the water jacket 5 a pocket in which open the top ports 9-10 and which in turn opens through ori-- fice 13 into the top portion of the water jacket 5.

Thus the water which is strongly heated in plug 3 owing to its slow circulation through the same, is discharged into the top portion of the water jacket where the circulating water is very hot, and is conveyed directly to radiator (not shown); thus a uniform and correct circulation is promoted through plug 3, j p

course this invention is not reetricted lathe embodiment described i u, it being only confined by a pended claims;

portion of them \Vhat I claim as my invention and desire to secure by United States Letters Patent l. A. water jacketed cylinder for explosion engines having an opening leading to cylinder explosion chamber. a hollow plug closing said opening and means l'or producing a water circulation through said hollow plum 2. A water jacketed cylinder for explosion engines having an opening leading to cylinder explosion chamber, a hollow plug closing said opening and means for producing a Water circulation from and to said Water jacket through said hollow plug.

3. A Water jacketed cylinder :torexploeion engines having an opening leading to cylinder explosion chamber, a hollow plug-closing said opening, said Water jacket and plug having abutting surfaces and registering ports in said sin-faces for producing a Water circulation through said hollow plug.

at. A Water jacketed cylinderfor explosion engines having an opening leading to the cylinder explosion chzunher, a hollow plug [filling said opening, an enlarged hollow head on Paid plug said water jacket and plug head having abutting; surfaces and reg-51st ing ports in said surfaces for providing a Water circulation through. said hollow plug.

A Water jacketed cylinder for explosion engines having an opening leading; to l 'uder explosion chamber, a hollow plug. lll'lllfl said opening, an enlarged hollow head on said plug, said Water jacket and plug head having; abutting surfaces and registeriiig ports in said surfaces for providing: a water circulation through said hollow plug; and cooperating means on said plug head and Walter jacket for fastening said plug in position.

6. A rater jacketed cylinder for explosion engines having an opening leading to c) indcr explosion chaauher, a hollow plus. i ng: said opening. an, enlarged hollow head on Svtltl plug. said water jacket and plug head having abutting surfaces and registering ports in said. surfaces for providiiiig a water circulation through said hollow plug. and cooperatinn bosses in said head and bolts pas through holes in the saigue and engaging vater jacket to fasten saidplupt in position.

7. A *ater jacketed cylinder for explosion engines having; an opening: leading to cylinder explosion chamber, a hollow plunclosing said opening. means for producing a water circulation through said hollow plop; from and to said water jacket, and means in said Water jacket for promoting: said Water circulation through said plug.

8. A Water jacketed cylinder for explosion engines hz ivinp; an opening leading-1 to cylinder explosion chamber, a hollow plug closinc" said opening, said water jacket and plug ha ving ahuttino; surfaces and ports for pro vldlng to a water circulation through said hollow plug, and vmeans in said. Water jacket for promoting the water circulation through said plug.

9. A \ltllltl jacketed cylinder for e:-;- plosiou engines having; an opening lczulingj, to the cylinder explosion cllaiulmr a hollow plug filling; said opening, an enlarged hollow head on said. plu u said water jacket and plup; head having ahutting surfaces and regietcriu t ports in said sur i es lor prtufiidiug a Water circulation through said hollow plug, and means in said Water jacket for jnhouiotingg a water circl'llation through said plug.

10; A Water jacketed c liu iler 'lor eajtilosion engines having an opening leadiiujr to cylinder e: )losion chainliicr. a luillow plu s; clo1 d opcninaj and nioaiw 'l'or proridu f water circulation :t'roiu and to said water jacket through said hollow plus, a partiticui providing a pocket in said outer jacket, said pocket iliscliaraiuu in the top portion ol said water juelicet and receiving water ii-isuiup; from said plug.

ll. A water jacketed cylinder tor cxplw sion engines having; an lllljl'ijEn'llljl' leading to cylinder explosion chandler, a hollow plop: closing said o 'icning, said Water jacl and plug: having: alluttiuf urlaccs and r j 1 inf, ports in said surr: tor u'mliuriu.- a Water circulation througl said hollow phat, a partition providing a pocl-zet in said water jacket, a number oi. said ports opening in said pocket. and said pocket having an outlet opening in the top portion oi said water jacket.

12. A. Water jacketed cylinder tor mphsilou. engines having an opcniiur lczuliup; lo cylinder explosion chaiuher. a holltuv plucclosing said opeiiin said water jzu' and plug;- having ahuttiu ltd"- eurl'accu and re inn ports in said surfaces: ahorc and under said opening tor producing: a Water t'll'll'lliltion through said hollou' plug. a partition providing a pocket in said Water jail-rut. the ones oi said ports ahoro said opening com nninicatmg' with said pocket. and said poi-lint having an outlet opening in the top portion o'l said Water jacket.

13. A atcr jacketed c 'lirulcr for cxplw sion inc ines haviucan o 'auiiu r luadiiugr 1o cylinder exj'ilosion chaiuhur. a hollow plu' lillin said opening. an cidarcwl hollow head on d plum. raid rater jacket and plug? head harin ahuttin g surfaces and 1": i

ERNESTO llilAt-iGIOILlill] low 

